EstramustineTaxoidsNitrogen Mustard CompoundsProstatic NeoplasmsPaclitaxelProstatic Secretory ProteinsAntineoplastic Combined Chemotherapy ProtocolsAntineoplastic Agents, PhytogenicProstate-Specific AntigenVinblastineAntineoplastic Agents, HormonalMitoxantroneDrug Administration ScheduleNeoplasms, Hormone-DependentTreatment OutcomeDrug Resistance, NeoplasmAdenocarcinomaAntineoplastic AgentsMicrotubulesInfusions, IntravenousAdministration, OralAntineoplastic Agents, AlkylatingSurvival AnalysisNeoplasm MetastasisPrednisone